CN214456533U

CN214456533U - Lifting device for mobile operation

Info

Publication number: CN214456533U
Application number: CN202022717118.XU
Authority: CN
Inventors: 郭晓亮; 邓向斌; 丁文兵; 陈璐
Original assignee: Hangzhou Lebben Technology Co ltd
Current assignee: Hangzhou Lebben Technology Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-10-22
Anticipated expiration: 2030-11-20

Abstract

The application discloses a lifting device for mobile operation, which comprises at least three carrier lifting devices and connecting beams detachably mounted with the carrier lifting devices, wherein each carrier lifting device comprises a lifting column and a supporting mechanism mounted at the bottom of the lifting column, a connecting assembly for mounting the connecting beams is arranged on the supporting mechanism, each connecting beam forms a frame structure, and the frame structure directly or indirectly butts against a supporting surface; the coupling assembling includes: the connecting upper seat and the connecting lower seat are fixedly connected with the supporting mechanism, and the connecting upper seat and the connecting lower seat are in a working state of clamping and positioning the connecting beam and a release state of separating the connecting beam from the connecting assembly; and the locking piece is arranged on the upper connecting seat or the lower connecting seat and is used for keeping the upper connecting seat and the lower connecting seat in a working state. This application realizes the demountable installation of tie-beam through coupling assembling, has compromise carrier lifting devices's portability and stability, has higher spreading value.

Description

Lifting device for mobile operation

Technical Field

The application relates to the field of mechanical equipment, in particular to a lifting device for moving operation.

Background

The lifting machine can realize the lifting of heavy objects. In daily life and production, lifting devices are devices used to lift vehicles during their maintenance.

The existing lifting device realizes the lifting of a top column or the lifting of a shear type through a hydraulic mode. For example, chinese patent publication No. CN210340221U discloses an automobile lifting mechanism, which includes a control part and two lifting parts, the control part is connected to one of the lifting parts, each lifting part includes an upright, a support platform, a lead screw, and a motor in driving connection with the lead screw, an output shaft of the motor is connected to a top end of the lead screw through a transmission device, a bottom end of the lead screw is connected to a bottom end of the upright, the support platform is slidably connected to the lead screw through a first lead screw nut, a top end and a bottom end of the upright are respectively connected to a first travel switch and a second travel switch, and both the first travel switch and the second travel switch are electrically connected to the motor; the top of each upright post is connected with a detection device for detecting the rotating speed of the screw rod, the two rotating speed detection devices are electrically connected with the control part, and the two motors are electrically connected with the control part.

The inventor finds that the lifting device in the prior art is complex and heavy in structure, and has room for improvement.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application discloses a lifting device for mobile operation, which comprises at least three carrier lifting devices and connecting beams detachably mounted with the carrier lifting devices, wherein each carrier lifting device comprises a lifting column and a supporting mechanism mounted at the bottom of the lifting column, a connecting assembly used for mounting the connecting beams is arranged on the supporting mechanism, each connecting beam forms a frame structure, and the frame structure directly or indirectly abuts against a supporting surface;

the connecting assembly includes:

one of the upper connecting seat and the lower connecting seat is fixedly connected with the supporting mechanism and has an operating state for clamping and positioning the connecting beam and a releasing state for separating the connecting beam from the connecting assembly by moving away from each other;

and the locking piece is arranged on the upper connecting seat or the lower connecting seat and is used for keeping the upper connecting seat and the lower connecting seat in a working state.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the upper connecting seat and the lower connecting seat are connected through a hinge, one of the upper connecting seat and the lower connecting seat is provided with the locking piece on one side far away from the hinge, and the other is provided with a locking convex strip matched with the locking piece.

Optionally, the locking convex strip comprises a positioning inclined plane used for being matched with the locking piece, the positioning inclined plane faces the hinge, and the width of the positioning inclined plane is matched with the locking piece.

Optionally, a locking anchor point is arranged on one of the upper connecting seat and the lower connecting seat, the locking piece includes a screw rod with one end hinged to the locking anchor point and a pressing piece moving on the screw rod, and the pressing piece and the positioning inclined plane are matched with each other to keep the upper connecting seat and the lower connecting seat in a working state.

Optionally, compress tightly the piece include with screw rod screw-thread fit's application of force piece and with location inclined plane complex interlock piece, interlock piece orientation one side of locking sand grip is equipped with the cooperation district of inside indentation, the lateral wall in cooperation district include with the fitting surface of locking sand grip lateral wall laminating and with location inclined plane complex interlock face, interlock piece can the axial of screw rod upward movement will application of force piece's effort transmits extremely on the location inclined plane.

Optionally, the upper connecting seat and/or the lower connecting seat are/is provided with a first positioning hole, the connecting beam is provided with a plurality of second positioning holes, and when the connecting beam is matched with the connecting assembly, the first positioning hole is aligned with one of the second positioning holes.

Optionally, the cross-sectional shape of the lower connecting seat is U-shaped, and the inside of the opening is used for accommodating the connecting beam, and the upper connecting seat is arranged as follows:

the cross section is U-shaped and surrounds the connecting beam with the connecting lower seat; or

The cross section is in a shape of a straight line and closes the opening of the lower connecting seat to wrap the connecting beam.

Optionally, one side of the lower connecting seat is connected with the supporting mechanism and provided with a locking anchor point for connecting the locking piece, the other side of the lower connecting seat is provided with the hinge, one side of the upper connecting seat is connected with the hinge, and the other side of the upper connecting seat bypasses the connecting beam and is matched with the locking piece.

Optionally, one side of the lower connecting seat is connected with the supporting mechanism and provided with the hinge, the other side of the lower connecting seat is provided with a locking anchor point for connecting the locking piece, one side of the upper connecting seat is connected with the hinge, and the other side of the upper connecting seat bypasses the connecting beam and is matched with the locking piece.

Optionally, the connecting mechanism is provided with at least two connecting assemblies, each connecting assembly is connected with different connecting beams, and the extending directions of the different connecting beams are different.

Optionally, the tie-beam structure or components of a whole that can function independently structure as an organic whole, the tie-beam includes when the components of a whole that can function independently structure:

the two connecting auxiliary beams can be mutually butted or separated in the length direction;

the two ends of the inserting beam are respectively inserted into the two connecting auxiliary beams, and the inserting beam is provided with a limiting disc for limiting the position of the inserting beam or a flat outer surface in the length direction.

Optionally, the radial dimension of the side where the two connecting secondary beams are butted with each other is expanded to form a butting surface, and the outer dimension of the insertion beam corresponds to the inner dimension of the connecting secondary beam.

Optionally, the connection auxiliary beam is close to the butt joint surface, a support foot pad is arranged at the butt joint surface, and the support foot pad is arranged on the bottom surface of the connection auxiliary beam and is used for being abutted to the support surface.

Optionally, the number of the carrier lifting devices is four, the connecting beam comprises two connecting cross beams which are arranged oppositely and two connecting longitudinal beams which are arranged oppositely, the connecting cross beams are of an integral structure or a split structure, and the connecting longitudinal beams are of an integral structure or a split structure.

Optionally, each connecting beam is connected to an outer side of a corresponding vehicle lifting device, and each vehicle lifting device is located on an inner side of the frame structure.

Optionally, the connecting longitudinal beam and the connecting transverse beam are coplanar or non-coplanar.

Optionally, each carrier lifting device including lift the post and with the supporting mechanism that the holding surface offseted, be equipped with the coupling assembling that is used for installing the tie-beam that corresponds on the supporting mechanism, coupling assembling's bottom is equipped with the support callus on the sole, the support callus on the sole set up in just be used for offsetting with the holding surface on the bottom surface of tie-beam.

Optionally, the supporting mechanism is provided with at least two sets of connecting assemblies, and the extending directions of the two sets of connecting assemblies are not coplanar.

Optionally, the tie-beam is square pipe, corresponding tie-beam is tightened to coupling assembling parcel.

The application also discloses a lifting device assembling method for mobile operation, which comprises the following steps:

placing a preset number of carrier lifting devices around a carrier to be lifted, and opening a connecting assembly of each carrier lifting device to enable an upper connecting seat and a lower connecting seat to enter a release state;

and taking the integrated connecting beam or the assembled split connecting beam, placing the connecting beam in the corresponding connecting assembly, and operating the locking piece of each connecting assembly to enable the upper connecting seat and the lower connecting seat to enter a working state.

This application realizes the demountable installation of tie-beam through coupling assembling, has compromise carrier lifting devices's portability and stability, has higher spreading value.

Specific advantageous technical effects will be further explained in conjunction with specific structures or steps in the detailed description.

Drawings

FIG. 1a is a schematic view of an embodiment of a lift apparatus;

FIG. 1b is a schematic view of an embodiment of a support mechanism;

FIG. 1c is a schematic view of a support mechanism according to an embodiment (with a portion of the connecting beam omitted);

FIG. 2a is a schematic view of a connection assembly and a connection beam according to an embodiment;

FIG. 2b is a schematic view of the compression member of FIG. 2a engaged;

FIG. 2c is a schematic view of an embodiment of a support mechanism without a connecting member;

FIG. 3a is a schematic view of an embodiment of a lift apparatus;

FIG. 3b is a schematic side view of an embodiment of a lifting device;

FIG. 3c is an enlarged view of FIG. 3b at the bearing surface;

FIG. 4a is a partially omitted illustration of an embodiment of the lift apparatus;

FIG. 4b is a schematic view of the split coupling beam assembly of FIG. 4 a;

FIG. 4c is an assembled view of a split coupling beam of the alternate construction of FIG. 4 a;

FIG. 4d is a schematic diagram of an internal mechanism of the lifting apparatus according to an embodiment.

The reference numerals in the figures are illustrated as follows:

11. lifting the column; 112. a support mechanism;

20. a connecting beam; 201. a second positioning hole; 211. a butt joint surface; 22. a plug beam; 23. supporting the foot pad;

30. a connecting assembly; 301. a hinge; 302. locking the convex strip; 303. positioning the inclined plane; 304. a first positioning hole;

31. connecting an upper seat;

32. connecting a lower seat;

33. a locking member; 331. locking an anchor point; 332. a compression member; 3321. a force application member; 3322. an engaging member; 3323. a mating zone; 3324. a mating surface; 3325. occlusal surface; 333. a screw;

34. a mounting structure;

40. a support surface.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The application discloses a lifting device for mobile operation, which comprises at least three carrier lifting devices and connecting beams 20 detachably mounted with the carrier lifting devices, wherein each carrier lifting device comprises a lifting column 11 and a supporting mechanism 112 mounted at the bottom of the lifting column 11, a connecting component 30 for mounting the connecting beams 20 is arranged on the supporting mechanism 112, each connecting beam 20 forms a frame structure, and the frame structure is directly or indirectly abutted against a supporting surface 40; the connecting assembly 30 includes:

a connecting upper seat 31 and a connecting lower seat 32, one of which is fixedly connected with the supporting mechanism 112 and has an operating state of clamping and positioning the connecting beam 20 and a release state of being away from each other to allow the connecting beam 20 to be separated from the connecting assembly 30;

and a locking member 33 mounted on the coupling upper seat 31 or the coupling lower seat 32 for maintaining the coupling upper seat 31 and the coupling lower seat 32 in an operating state.

The connecting assembly 30 is used for realizing the detachable installation of the supporting mechanism 112 and the connecting beam 20, and the portability and the stability of the carrier lifting device are considered. When the upper connecting seat 31 and the lower connecting seat 32 are in an operating state, the connecting beam 20 and the supporting mechanism 112 are mutually positioned, so that a stable stress system is constructed, and the stable arrangement of the lifting column 11 in space is realized. The operation of connecting the upper seat 31 and the lower seat 32 is realized by the locking member 33, and the locking member 33 should in principle avoid directly bearing the lifting load and avoid the possibility of locking failure.

In the specific arrangement of the locking member 33, referring to an embodiment, the upper connecting seat 31 and the lower connecting seat 32 are connected by a hinge 301, one of the upper connecting seat 31 and the lower connecting seat 32 is provided with the locking member 33 on a side away from the hinge 301, and the other is provided with a locking rib 302 engaged with the locking member 33.

The locking ribs 302 function to achieve an even distribution of the locking torque and a positioning function of the locking member 33, thereby enhancing the effect of locking of the locking member 33.

The locking rib 302 may be provided in various shapes, for example, as a flat bearing surface for more stably achieving engagement with the locking member 33. It is also possible to refer to an embodiment in which the locking rib 302 comprises a positioning ramp 303 for cooperating with the locking member 33, the positioning ramp 303 being directed towards the hinge 301, the width of the positioning ramp 303 cooperating with the locking member 33.

The positioning slope 303 can ensure the stability of the locking member 33 in the locked state. In the present embodiment, the positioning slope 303 is disposed toward the hinge 301, that is, the direction of the force applied to the locking element 33 in the process of determining the slope fit at least includes a component force toward the hinge 301, so as to avoid an unexpected failure of the locking state of the locking element 33. The width of the positioning slope 303 and the locking piece 33 cooperate with each other to realize the positioning of the locking piece 33 by the positioning slope 303. For example, as shown in fig. 1c, the platforms on both sides of the positioning slope 303 limit the locking element 33, and the locking element 33 cannot move along the positioning slope 303 when in the locked state, thereby improving the stability of the operation of the locking element 33.

In terms of establishing the locking moment of the locking member 33, referring to an embodiment, a locking anchor 331 is disposed on one of the upper connecting seat 31 and the lower connecting seat 32, the locking member 33 includes a screw rod 333 having one end hinged to the locking anchor 331 and a pressing member 332 moving on the screw rod 333, and the pressing member 332 cooperates with the positioning slope 303 to maintain the upper connecting seat 31 and the lower connecting seat 32 in the working state.

In this embodiment, applying a force to one of upper connection seat 31 and lower connection seat 32 is achieved by locking anchor 331 and pressing member 332, thereby achieving mutual approaching of upper connection seat 31 and lower connection seat 32. The locking piece 33 can hold the coupling upper seat 31 and the coupling lower seat 32 in the operating state, and also can clamp the coupling beam 20 by the coupling upper seat 31 and the coupling lower seat 32, thereby providing a friction force in the axial direction of the coupling beam 20 and improving the stability.

In the arrangement of the pressing member 332, the pressing member 332 and the locking rib 302 are pressed by the screw kinematic pair with the screw 333, but the simultaneous rotation and axial movement of the screw kinematic pair has a certain effect on the operation of the pressing member 332. Referring to an embodiment, the pressing member 332 includes a force applying member 3321 threadedly engaged with the screw 333 and an engaging member 3322 engaged with the positioning inclined surface 303, the engaging member 3322 is provided with an inwardly retracted engaging region 3323 on a side facing the locking rib 302, a side wall of the engaging region 3323 includes an engaging surface 3324 engaged with a side wall of the locking rib 302 and an engaging surface 3325 engaged with the positioning inclined surface 303, and the engaging member 3322 can move in the axial direction of the screw 333 and transmit the force of the force applying member 3321 to the positioning inclined surface 303.

In this embodiment, the engaging piece 3322 and the force applying piece 3321 are independently disposed to avoid the problem that the rotation and the axial movement occur simultaneously in the screw kinematic pair, and the engaging piece 3322 realizes the rotation stop relative to the screw 333 through the engaging surface 3324 of the engaging area 3323, thereby realizing the better engaging effect of the engaging surface 3325 and the positioning inclined surface 303, and improving the stability of the whole product while improving the locking effect of the locking piece 33.

As mentioned above, the upper connecting seat 31 and the lower connecting seat 32 can achieve the positioning effect by applying pressure to the outer peripheral surface of the connecting beam 20, and in an embodiment, the upper connecting seat 31 and/or the lower connecting seat 32 is provided with a first positioning hole 304, the connecting beam 20 is provided with a plurality of second positioning holes 201, and when the connecting beam 20 is matched with the connecting assembly 30, the first positioning hole 304 is aligned with one of the second positioning holes 201.

The first positioning hole 304 and the second positioning hole 201 can be aligned to form a positioning pin (not shown) in a penetrating manner, so that the rigid connection among the upper seat 31, the lower seat 32 and the connecting beam 20 is realized, and the stability can be effectively improved when the carrier lifting device is stressed. The increase in the number of the second positioning holes 201 can also improve the adaptability and facilitate fine adjustment. The second positioning holes 201 may be independent holes as shown in the drawings, or may be elongated guide grooves with limiting holes.

In the specific shape of the upper connecting seat 31 and the lower connecting seat 32, referring to an embodiment in which the lower connecting seat 32 has a U-shaped cross section and an open interior for receiving the connecting beam 20, the upper connecting seat 31 is configured as follows:

the section is U-shaped and surrounds the connecting beam 20 with the connecting lower seat 32; or

The sectional shape is a shape of one and closes the opening of the connection lower seat 32 to wrap the connection beam 20.

The lower coupling seat 32 is formed in a U shape as a member for supporting the coupling beam 20, and can improve the stability of the coupling beam 20 by accommodating the coupling beam 20. The upper connecting seat 31 is U-shaped and wraps the connecting beam 20, so that acting force can be more uniformly distributed to the connecting beam 20 and effective stress points of the supporting mechanism 112, and the connecting stability is improved; the connecting upper seat 31 is in a shape of one, so that the weight of the connecting upper seat 31 can be reduced, and the operation is convenient.

As described above, the connection beam 20, the connection assembly 30 and the support mechanism 112 constitute a support system connected with each other, thereby achieving a stable arrangement of the lifting column 11. In an embodiment, at least two connecting assemblies 30 are disposed on the connecting mechanism, each connecting assembly 30 connects different connecting beams 20, and the extending directions of the different connecting beams 20 are different.

The coupling beams 20 having different extending directions can provide a larger projected area in the gravity direction under the condition of the same material, weight and volume, thereby providing a more stable supporting effect.

The different arrangements will be explained with reference to the specific structure, and referring to fig. 1c, the connection lower seat 32 indicated at a is connected to the support mechanism 112 and provided with a locking anchor 331 for connecting the locking member 33, and the other side is provided with a hinge 301, the connection upper seat 31 is connected to the hinge 301, and the other side is engaged with the locking member 33 by bypassing the connection beam 20. In other embodiments, the positions of the locking anchor 331 and the hinge 301 may be reversed, and the position of the locking flange may be adjusted accordingly.

Referring to fig. 1c, the connecting lower seat 32 indicated at B is connected to the supporting mechanism 112 and has a hinge 301 on one side, and a locking anchor 331 for connecting the locking member 33 on the other side, and the connecting upper seat 31 is connected to the hinge 301 on one side and engaged with the locking member 33 by bypassing the connecting beam 20 on the other side. In other embodiments, the positions of the locking flange and the hinge 301 may be reversed, and correspondingly, the position of the locking anchor should be adjusted accordingly.

In a practical product, the two connection modes can be combined as required, thereby realizing different technical effects. For example, as shown in fig. 1c, the two connecting members 30 are connected in different ways, mainly considering the convenience of the different connecting beams 20 during the connection process, and avoiding the mutual interference between the connecting members 30. In addition to the alternative of the snap-fit of the connecting members 30, the positions of the locking members 33 of the two connecting members 30 may be the same or different as desired. Referring to fig. 1c, the locking members 33 of the two connecting members 30 are disposed at different positions, wherein a is a position where the locking member 33 is disposed on a side of the connecting member 30 close to the supporting mechanism 112, and B is a position where the locking member 33 is disposed on a side of the connecting member 30 away from the supporting mechanism 112. In keeping with the above, the main consideration is the ease of handling of the various coupling beams 20 during the coupling process, while also avoiding interference between the coupling assemblies 30. The specific settings can be adjusted according to the actual requirements of the product.

In the installation and installation of the connection assembly 30, referring to fig. 2c, the support mechanism 112 is provided with an installation structure 34 for installing a corresponding structure, and the installation structure 34 and the connection assembly 30 can be connected by welding, bolts, or by inserting or other structures which are convenient to detach, so as to further improve the detachability of the product, thereby facilitating storage and transportation.

With reference to fig. 2a, the connecting assembly 30 is taken as an example, and a specific operation process of the connecting assembly 30 is exemplarily explained. When it is desired to effect the mounting of the connecting assembly 30 and the connecting beam 20:

firstly, the connecting assembly 30 needs to be opened, the connecting assembly 30 is in a locking state by default in the storage and transportation process, and the upper seat 31 and the lower seat 32 can be connected in a loss mode in the storage and transportation process; the movement stroke of the engagement piece 3322 is released by rotating the force applying piece 3321 of the locking piece 33, and when the movement stroke of the engagement piece 3322 can allow the engagement surface 3325 to be disengaged from the locking slant, the screw rod 333 is rotated about the locking anchor point 331 as the rotation axis, and at this time, the locking of the connection upper seat 31 is released, and the operator manually opens the connection upper seat 31;

secondly, mounting the connecting beams 20, placing the corresponding connecting beams 20 into the connecting lower seats 32, adjusting the relative positions between the positioning holes, manually closing the connecting upper seats 31 after confirmation, and positioning the connecting beams 20 through positioning pins (not shown), wherein the positioning pins can prevent the connecting beams 20 from relatively displacing relative to the connecting assembly 30 in the locking process of the connecting assembly 30;

finally, the connecting assembly 30 is locked, the screw rod 333 is rotated with the locking anchor 331 as a rotation axis and the position of the engaging piece 3322 is adjusted until the side wall of the locking protrusion 302 is attached to the engaging surface 3324, the positioning inclined surface 303 is attached to the engaging surface 3325, and then the force applying piece 3321 is rotated to press the engaging piece 3322, so as to lock the upper seat 31 and the lower seat 32. The specific force applying member 3321 locking torque in this step can be adjusted according to different settings of the product. For example, in an embodiment, the size of the connecting beam 20 is larger than the accommodating size of the connecting assembly 30, and the tightening of the connecting beam 20 by the connecting upper seat 31 and the connecting lower seat 32 needs to be realized by the locking piece 33, and the force application piece 3321 needs a larger locking moment; corresponding limiting structures can be arranged to prevent the force application member 3321 from being too tight; for example, in another embodiment, the dimension of the connecting beam 20 is smaller than or equal to the accommodating dimension of the connecting assembly 30, and the force application member 3321 requires a smaller locking moment; corresponding limiting structures may also be provided to prevent over-tightening of the force applying member 3321.

Referring to fig. 3a to 4d, the present application discloses a lifting device for mobile operation, which includes at least three vehicle lifting devices and connecting beams 20 detachably mounted to the vehicle lifting devices, each vehicle lifting device is connected to at least two connecting beams 20, an included angle exists between the extending directions of the two connecting beams 20, each connecting beam 20 forms a frame structure, and the frame structure directly or indirectly abuts against a supporting surface 40.

At least three carrier lifting devices with included angles between connecting lines form a plane lifting system, which can realize a supporting plane far away from the supporting surface 40, thereby realizing carrier lifting. The positional relationship between the vehicle lifting devices is determined by the frame structure constituted by the connecting beams 20. Thus, in this embodiment, the frame structure and the vehicle lifting device form a detachable lifting system. The frame structure, in addition to being subjected to forces from between the vehicle lifting devices, can also be used to bear loads by abutting against the support surface 40, improving the stability of the lifting system.

In the arrangement of the coupling beam 20, referring to an embodiment, the coupling beam 20 is an integral structure or a separate structure, and when the coupling beam 20 is the separate structure, the coupling beam includes:

two connecting sub-beams 21 which can be butted against each other or separated from each other in the length direction;

the two ends of the inserting beam 22 are respectively inserted into the two connecting auxiliary beams 21, and the inserting beam 22 is provided with a limiting disc for limiting the position of the inserting beam or a flat outer surface in the length direction.

The connecting beam 20 has better mechanical property and is convenient to produce. However, due to the limitation of size, the longer size will have certain influence on storage and transportation, and is suitable for the application scenario with smaller size. In a common application scenario of vehicle size, the connection beam 20 may be a split structure to improve storage and transportation performance. In the present embodiment, in order to reduce the influence of the separate structure on the strength of the coupling beam 20, the coupling effect of the coupling sub-beam 21 is improved by the insertion beam 22. In detail, the limiting disc on the plug beam 22 can improve the connection effect (refer to fig. 4c), but can have a certain influence on the adaptability; the plug-in beam 22 with a flat outer surface has a high degree of flexibility (see fig. 4b), but the ultimate mechanical properties in certain cases can be influenced to a certain extent. Of course, the connection sub-beam 21 may also be optimized for flexibility of the plug beam 22, for example by providing a limiting mechanism (not shown) inside or on the periphery to limit the limit position of the plug beam 22.

In addition to the insertion beam 22, the coupling sub-beam 21 itself is also provided with a structure that improves the coupling effect. Referring to an embodiment, the radial dimension of the side where the two coupling sub-beams 21 are butted against each other is expanded to form a butting face 211, and the outer dimension of the plug beam 22 corresponds to the inner dimension of the coupling sub-beam 21.

The abutting surface 211 can enlarge the contact area, thereby improving the mechanical performance. However, the abutting surface 211 also has a negative influence on the insertion beam 22 wrapping the connection sub-beam 21, and therefore, in the present embodiment, this problem is overcome by inserting the insertion beam 22 into the connection sub-beam 21, and the above-mentioned stopper mechanism and the like may be provided on the inner side wall of the connection sub-beam 21.

In order to improve the storage and transport performance of the coupling sub-beam 21, so that the dimensions of the two are identical or close to each other, it is readily apparent from the drawing that the abutment surface 211 is provided in the middle region of the coupling beam 20. But this position has a certain influence on the mechanical properties of the coupling beam 20. In one embodiment, the connecting sub-beam 21 is provided with a supporting foot 23 near the abutting surface 211, and the supporting foot 23 is disposed on the bottom surface of the connecting sub-beam 21 and is used for abutting against the supporting surface 40.

The supporting foot pads 23 improve the load carrying capacity of the frame structure and at the same time reduce the influence of the joints connecting the secondary beams 21 on the overall mechanical performance of the connecting beam 20. The support foot 23 is provided with various deformations, for example, it may be flexible or rigid; the surface can be flat or rough; a larger contact area with the supporting surface 40 is possible, an equivalent projected area is increased while a contact area is reduced by a ring structure as shown in the drawing, and the like.

In relation to the coupling beams 20, in reference to an embodiment, each coupling beam 20 is coupled to an outer side of a corresponding vehicle lifting device, which is located inside the frame structure.

The connecting beam 20 located outside the vehicle lifting device can protect the vehicle lifting device from being damaged during use. Meanwhile, the connecting beam 20 can enlarge the projection area of the frame structure in the gravity direction as much as possible under the condition that the size of the whole product is not changed, so that the stability of the device is improved.

The arrangement of the connecting beams 20 on the gravity projection plane refers to an embodiment in which the connecting beams 20 comprise connecting cross beams and connecting longitudinal beams. The included angle between the connecting cross beam and the connecting longitudinal beam can be a right angle as shown in the attached drawings, and can also be other angles. The expressions lateral and longitudinal are not limited to the positive direction but are equivalent to the first and second coupling beams 20 and 20 in terms of relative concept.

The arrangement of the connecting beams 20 in the direction of gravity is referred to in one embodiment as the connecting stringers being coplanar or non-coplanar with the connecting cross-beams. Coplane tie-beam 20 sets up more regularly, makes things convenient for the removal of carrier, and noncoplanar tie-beam 20 has better mechanical properties performance, and makes things convenient for the dismouting.

The support mechanism 112 is an important support member in addition to the forces applied to the frame structure. In an embodiment, each vehicle lifting device includes a lifting column 11 and a supporting mechanism 112 abutting against the supporting surface 40, the supporting mechanism 112 is provided with a connecting assembly 30 for mounting the corresponding connecting beam 20, a supporting foot pad 23 is provided at the bottom of the connecting assembly 30, and the supporting foot pad 23 is disposed on the bottom surface of the connecting beam 20 and is used for abutting against the supporting surface 40.

The connecting assembly 30 is detachably connected with the connecting beam 20 while being connected with the supporting mechanism 112, and when the connecting assembly 30 abuts against the supporting surface 40 by supporting the sole of the foot, the connecting assembly is equivalent to the connecting beam 20 and the supporting mechanism 112 being connected with the supporting surface 40, so that the whole structure is stable and simple.

In terms of the number of the connecting assemblies 30, referring to an embodiment, at least two sets of the connecting assemblies 30 are provided on the supporting mechanism 112, and the extending directions of the two sets of the connecting assemblies 30 are not coplanar.

The extending direction of the connecting member 30 may be the same as or different from the extending direction of the connecting beam 20, and in an actual product, the connecting beam 20 is not necessarily a linearly arranged member.

In the specific shape of the coupling beam 20, referring to an embodiment, the coupling member 30 is a square pipe, and wraps and tightens the coupling beam 20.

The tie-beam 20 is square pipe can bear self ascending stress in circumference, cooperates tightening of coupling assembling 30, can further improve the holistic stability of device.

Referring to fig. 3a, the carrier lifting device has four connecting beams 20, which include two connecting cross beams and two connecting longitudinal beams.

In principle, the connecting beam can be of an integral structure or a split structure. The connecting longitudinal beam in the same way can be of an integral structure or a split structure. The specific settings can be adjusted as desired.

The use of the lifting device in the present application is explained in an exemplary manner in connection with fig. 3 a.

When the lifting devices need to be erected on the supporting surface 40, firstly placing a required number of carrier lifting devices, and opening all the connecting components 30;

and taking the integrated connecting beam 20 or the assembled split connecting beam 20, placing the connecting beam 20 in the corresponding connecting component 30, and locking the corresponding connected component.

The lifting device can be unfolded for operation.

The same principle of disassembling the lifting device is not described herein. It is understood that the method for assembling a mobile lifting device according to the present invention can be implemented by the mobile lifting device described above, and similarly, the mobile lifting device described above can also be implemented by the method for assembling a mobile lifting device according to the present invention.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. The lifting device for moving operation is characterized by comprising at least three carrier lifting devices and connecting beams detachably mounted with the carrier lifting devices, wherein each carrier lifting device comprises a lifting column and a supporting mechanism mounted at the bottom of the lifting column, a connecting assembly for mounting the connecting beams is arranged on the supporting mechanism, each connecting beam forms a frame structure, and the frame structure directly or indirectly abuts against a supporting surface;

the connecting assembly includes:

2. The mobile working lifting device according to claim 1, wherein the connecting upper seat and the connecting lower seat are connected by a hinge, one of the connecting upper seat and the connecting lower seat is provided with the locking member on a side away from the hinge, and the other is provided with a locking rib engaged with the locking member.

3. The mobile work lifting apparatus of claim 2, wherein said locking rib includes a positioning slope for engaging with said locking member, said positioning slope facing said hinge, said positioning slope having a width for engaging with said locking member.

4. The mobile working lifting device according to claim 3, wherein one of the upper connecting seat and the lower connecting seat is provided with a locking anchor point, the locking member comprises a screw rod with one end hinged to the locking anchor point and a pressing member moving on the screw rod, and the pressing member and the positioning slope cooperate with each other to keep the upper connecting seat and the lower connecting seat in an operating state.

5. The lifting device for mobile operation according to claim 4, wherein said pressing member includes a force application member in threaded engagement with said screw and an engaging member in engagement with said positioning slope, said engaging member has an engaging region extending inward toward one side of said locking protrusion, said side wall of said engaging region includes an engaging surface engaging with said side wall of said locking protrusion and an engaging surface engaging with said positioning slope, said engaging member is capable of moving in the axial direction of said screw and transmitting the force of said force application member to said positioning slope.

6. The mobile work lifting apparatus according to claim 1, wherein a first positioning hole is provided in the upper connection seat and/or the lower connection seat, and a plurality of second positioning holes are provided in the connection beam, and when the connection beam is engaged with the connection member, the first positioning hole is aligned with one of the second positioning holes.

7. The lifting device for mobile operation according to claim 1, wherein the connecting beam is an integral structure or a split structure, and when the connecting beam is a split structure, the connecting beam comprises:

8. The mobile working lifting device according to claim 7, wherein the side of the two coupling sub-beams abutting against each other is expanded in radial dimension to form an abutting surface, and the external dimension of the insertion beam corresponds to the internal dimension of the coupling sub-beams; connect the auxiliary beam and be close to butt joint face department is equipped with the support callus on the sole, support the callus on the sole set up in just be used for offsetting with the holding surface on the bottom surface of connecting the auxiliary beam.

9. The mobile lifting device according to claim 1, wherein four carrier lifting devices are provided, the connecting beams comprise two connecting beams and two connecting longitudinal beams, the two connecting beams are oppositely arranged, the connecting beams are of an integral structure or a split structure, and the connecting longitudinal beams are of an integral structure or a split structure.

10. A mobile work lifting device according to claim 9 wherein each connecting beam is connected to the outside of a corresponding vehicle lifting device, each vehicle lifting device being located inside the frame structure;

the connecting longitudinal beams and the connecting cross beams are coplanar or not coplanar.